Article 600.6 ask for a disconnect for a sign. If a sign builder installs a switch as an integral part of the sigh does this satisfy the requirement? One must realize that the UL standard does not require a disconnect as part of the requirements for sign construction.
I guess I left out a very key point. The branch circuit enters the back of the sign enclosure, travels through the sign and then exits the sign to terminate on the line side of a WP switch mounted on the sign. The load side of the switch has conductors that re-enter the sign enclosure and connect up to the Xformer of the sign. I feel that this a violation of 600.6 since the switch does not disconnect all un-grounded conductors in the sign. What do you think?
Note I said "at the circuit entry into the sign". I agree with you, either move the disconnect to the conduit entry point or change where the conduit enters to make it next to the switch, preferably in a separate enclosure within the sign. This could be as simple as a 4x4 deep ring that covered the switch terminals and conduit entry with a blank cover on the other side. I believe the purpose of the disconnect is to make the interior of the equipment safe. I am not making a proposal but I do think a label over the disconnect enclosure saying something like "line voltage present with disconnect off" is a good idea.